newfs.c revision 1.24
1 /* $NetBSD: newfs.c,v 1.24 1997/06/30 08:09:22 tls Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)newfs.c 8.8 (Berkeley) 4/18/94"; 45 #else 46 static char rcsid[] = "$NetBSD: newfs.c,v 1.24 1997/06/30 08:09:22 tls Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 /* 51 * newfs: friendly front end to mkfs 52 */ 53 #include <sys/param.h> 54 #include <sys/stat.h> 55 #include <sys/ioctl.h> 56 #include <sys/disklabel.h> 57 #include <sys/file.h> 58 #include <sys/mount.h> 59 #include <sys/sysctl.h> 60 61 #include <ufs/ufs/dir.h> 62 #include <ufs/ffs/fs.h> 63 64 #include <ctype.h> 65 #include <errno.h> 66 #include <paths.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <syslog.h> 71 #include <unistd.h> 72 #include <util.h> 73 74 #if __STDC__ 75 #include <stdarg.h> 76 #else 77 #include <varargs.h> 78 #endif 79 80 #include "mntopts.h" 81 82 struct mntopt mopts[] = { 83 MOPT_STDOPTS, 84 MOPT_ASYNC, 85 MOPT_UPDATE, 86 MOPT_NOATIME, 87 { NULL }, 88 }; 89 90 #if __STDC__ 91 void fatal(const char *fmt, ...); 92 #else 93 void fatal(); 94 #endif 95 96 #define COMPAT /* allow non-labeled disks */ 97 98 /* 99 * The following two constants set the default block and fragment sizes. 100 * Both constants must be a power of 2 and meet the following constraints: 101 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 102 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 103 * DESBLKSIZE / DESFRAGSIZE <= 8 104 */ 105 #define DFL_FRAGSIZE 1024 106 #define DFL_BLKSIZE 8192 107 108 /* 109 * Cylinder groups may have up to many cylinders. The actual 110 * number used depends upon how much information can be stored 111 * on a single cylinder. The default is to use 16 cylinders 112 * per group. 113 */ 114 #define DESCPG 16 /* desired fs_cpg */ 115 116 /* 117 * ROTDELAY gives the minimum number of milliseconds to initiate 118 * another disk transfer on the same cylinder. It is used in 119 * determining the rotationally optimal layout for disk blocks 120 * within a file; the default of fs_rotdelay is 0ms. 121 */ 122 #define ROTDELAY 0 123 124 /* 125 * MAXBLKPG determines the maximum number of data blocks which are 126 * placed in a single cylinder group. The default is one indirect 127 * block worth of data blocks. 128 */ 129 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 130 131 /* 132 * Each file system has a number of inodes statically allocated. 133 * We allocate one inode slot per NFPI fragments, expecting this 134 * to be far more than we will ever need. 135 */ 136 #define NFPI 4 137 138 /* 139 * For each cylinder we keep track of the availability of blocks at different 140 * rotational positions, so that we can lay out the data to be picked 141 * up with minimum rotational latency. NRPOS is the default number of 142 * rotational positions that we distinguish. With NRPOS of 8 the resolution 143 * of our summary information is 2ms for a typical 3600 rpm drive. Caching 144 * and zoning pretty much defeats rotational optimization, so we now use a 145 * default of 1. 146 */ 147 #define NRPOS 1 /* number distinct rotational positions */ 148 149 150 int mfs; /* run as the memory based filesystem */ 151 int Nflag; /* run without writing file system */ 152 int Oflag; /* format as an 4.3BSD file system */ 153 int fssize; /* file system size */ 154 int ntracks; /* # tracks/cylinder */ 155 int nsectors; /* # sectors/track */ 156 int nphyssectors; /* # sectors/track including spares */ 157 int secpercyl; /* sectors per cylinder */ 158 int trackspares = -1; /* spare sectors per track */ 159 int cylspares = -1; /* spare sectors per cylinder */ 160 int sectorsize; /* bytes/sector */ 161 int rpm; /* revolutions/minute of drive */ 162 int interleave; /* hardware sector interleave */ 163 int trackskew = -1; /* sector 0 skew, per track */ 164 int headswitch; /* head switch time, usec */ 165 int trackseek; /* track-to-track seek, usec */ 166 int fsize = 0; /* fragment size */ 167 int bsize = 0; /* block size */ 168 int cpg = DESCPG; /* cylinders/cylinder group */ 169 int cpgflg; /* cylinders/cylinder group flag was given */ 170 int minfree = MINFREE; /* free space threshold */ 171 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 172 int density; /* number of bytes per inode */ 173 int maxcontig = 8; /* max contiguous blocks to allocate */ 174 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 175 int maxbpg; /* maximum blocks per file in a cyl group */ 176 int nrpos = NRPOS; /* # of distinguished rotational positions */ 177 int bbsize = BBSIZE; /* boot block size */ 178 int sbsize = SBSIZE; /* superblock size */ 179 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 180 u_long memleft; /* virtual memory available */ 181 caddr_t membase; /* start address of memory based filesystem */ 182 #ifdef COMPAT 183 char *disktype; 184 int unlabeled; 185 #endif 186 187 char device[MAXPATHLEN]; 188 char *progname; 189 190 int 191 main(argc, argv) 192 int argc; 193 char *argv[]; 194 { 195 extern char *optarg; 196 extern int optind; 197 register int ch; 198 register struct partition *pp; 199 register struct disklabel *lp; 200 struct disklabel mfsfakelabel; 201 struct disklabel *getdisklabel(); 202 struct partition oldpartition; 203 struct stat st; 204 struct statfs *mp; 205 int fsi, fso, len, n, maxpartitions; 206 char *cp, *s1, *s2, *special, *opstring, buf[BUFSIZ]; 207 208 if (progname = strrchr(*argv, '/')) 209 ++progname; 210 else 211 progname = *argv; 212 213 if (strstr(progname, "mfs")) { 214 mfs = 1; 215 Nflag++; 216 } 217 218 maxpartitions = getmaxpartitions(); 219 if (maxpartitions > 26) 220 fatal("insane maxpartitions value %d", maxpartitions); 221 222 opstring = mfs ? 223 "NT:a:b:c:d:e:f:i:m:o:s:" : 224 "NOS:T:a:b:c:d:e:f:i:k:l:m:n:o:p:r:s:t:u:x:"; 225 while ((ch = getopt(argc, argv, opstring)) != EOF) 226 switch (ch) { 227 case 'N': 228 Nflag = 1; 229 break; 230 case 'O': 231 Oflag = 1; 232 break; 233 case 'S': 234 if ((sectorsize = atoi(optarg)) <= 0) 235 fatal("%s: bad sector size", optarg); 236 break; 237 #ifdef COMPAT 238 case 'T': 239 disktype = optarg; 240 break; 241 #endif 242 case 'a': 243 if ((maxcontig = atoi(optarg)) <= 0) 244 fatal("%s: bad maximum contiguous blocks\n", 245 optarg); 246 break; 247 case 'b': 248 if ((bsize = atoi(optarg)) < MINBSIZE) 249 fatal("%s: bad block size", optarg); 250 break; 251 case 'c': 252 if ((cpg = atoi(optarg)) <= 0) 253 fatal("%s: bad cylinders/group", optarg); 254 cpgflg++; 255 break; 256 case 'd': 257 if ((rotdelay = atoi(optarg)) < 0) 258 fatal("%s: bad rotational delay\n", optarg); 259 break; 260 case 'e': 261 if ((maxbpg = atoi(optarg)) <= 0) 262 fatal("%s: bad blocks per file in a cylinder group\n", 263 optarg); 264 break; 265 case 'f': 266 if ((fsize = atoi(optarg)) <= 0) 267 fatal("%s: bad fragment size", optarg); 268 break; 269 case 'i': 270 if ((density = atoi(optarg)) <= 0) 271 fatal("%s: bad bytes per inode\n", optarg); 272 break; 273 case 'k': 274 if ((trackskew = atoi(optarg)) < 0) 275 fatal("%s: bad track skew", optarg); 276 break; 277 case 'l': 278 if ((interleave = atoi(optarg)) <= 0) 279 fatal("%s: bad interleave", optarg); 280 break; 281 case 'm': 282 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 283 fatal("%s: bad free space %%\n", optarg); 284 break; 285 case 'n': 286 if ((nrpos = atoi(optarg)) <= 0) 287 fatal("%s: bad rotational layout count\n", 288 optarg); 289 break; 290 case 'o': 291 if (mfs) 292 getmntopts(optarg, mopts, &mntflags); 293 else { 294 if (strcmp(optarg, "space") == 0) 295 opt = FS_OPTSPACE; 296 else if (strcmp(optarg, "time") == 0) 297 opt = FS_OPTTIME; 298 else 299 fatal("%s: unknown optimization preference: use `space' or `time'."); 300 } 301 break; 302 case 'p': 303 if ((trackspares = atoi(optarg)) < 0) 304 fatal("%s: bad spare sectors per track", 305 optarg); 306 break; 307 case 'r': 308 if ((rpm = atoi(optarg)) <= 0) 309 fatal("%s: bad revolutions/minute\n", optarg); 310 break; 311 case 's': 312 if ((fssize = atoi(optarg)) <= 0) 313 fatal("%s: bad file system size", optarg); 314 break; 315 case 't': 316 if ((ntracks = atoi(optarg)) <= 0) 317 fatal("%s: bad total tracks", optarg); 318 break; 319 case 'u': 320 if ((nsectors = atoi(optarg)) <= 0) 321 fatal("%s: bad sectors/track", optarg); 322 break; 323 case 'x': 324 if ((cylspares = atoi(optarg)) < 0) 325 fatal("%s: bad spare sectors per cylinder", 326 optarg); 327 break; 328 case '?': 329 default: 330 usage(); 331 } 332 argc -= optind; 333 argv += optind; 334 335 if (argc != 2 && (mfs || argc != 1)) 336 usage(); 337 338 special = argv[0]; 339 if (mfs && !strcmp(special, "swap")) { 340 /* 341 * it's an MFS, mounted on "swap." fake up a label. 342 * XXX XXX XXX 343 */ 344 fso = -1; /* XXX; normally done below. */ 345 346 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 347 mfsfakelabel.d_secsize = 512; 348 mfsfakelabel.d_nsectors = 64; 349 mfsfakelabel.d_ntracks = 16; 350 mfsfakelabel.d_ncylinders = 16; 351 mfsfakelabel.d_secpercyl = 1024; 352 mfsfakelabel.d_secperunit = 16384; 353 mfsfakelabel.d_rpm = 3600; 354 mfsfakelabel.d_interleave = 1; 355 mfsfakelabel.d_npartitions = 1; 356 mfsfakelabel.d_partitions[0].p_size = 16384; 357 mfsfakelabel.d_partitions[0].p_fsize = 1024; 358 mfsfakelabel.d_partitions[0].p_frag = 8; 359 mfsfakelabel.d_partitions[0].p_cpg = 16; 360 361 lp = &mfsfakelabel; 362 pp = &mfsfakelabel.d_partitions[0]; 363 364 goto havelabel; 365 } 366 cp = strrchr(special, '/'); 367 if (cp == 0) { 368 /* 369 * No path prefix; try /dev/r%s then /dev/%s. 370 */ 371 (void)sprintf(device, "%sr%s", _PATH_DEV, special); 372 if (stat(device, &st) == -1) 373 (void)sprintf(device, "%s%s", _PATH_DEV, special); 374 special = device; 375 } 376 if (Nflag) { 377 fso = -1; 378 } else { 379 fso = open(special, O_WRONLY); 380 if (fso < 0) 381 fatal("%s: %s", special, strerror(errno)); 382 383 /* Bail if target special is mounted */ 384 n = getmntinfo(&mp, MNT_NOWAIT); 385 if (n == 0) 386 fatal("%s: getmntinfo: %s", special, strerror(errno)); 387 388 len = sizeof(_PATH_DEV) - 1; 389 s1 = special; 390 if (strncmp(_PATH_DEV, s1, len) == 0) 391 s1 += len; 392 393 while (--n >= 0) { 394 s2 = mp->f_mntfromname; 395 if (strncmp(_PATH_DEV, s2, len) == 0) { 396 s2 += len - 1; 397 *s2 = 'r'; 398 } 399 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 400 fatal("%s is mounted on %s", 401 special, mp->f_mntonname); 402 ++mp; 403 } 404 } 405 if (mfs && disktype != NULL) { 406 lp = (struct disklabel *)getdiskbyname(disktype); 407 if (lp == NULL) 408 fatal("%s: unknown disk type", disktype); 409 pp = &lp->d_partitions[1]; 410 } else { 411 fsi = open(special, O_RDONLY); 412 if (fsi < 0) 413 fatal("%s: %s", special, strerror(errno)); 414 if (fstat(fsi, &st) < 0) 415 fatal("%s: %s", special, strerror(errno)); 416 if (!S_ISCHR(st.st_mode) && !mfs) 417 printf("%s: %s: not a character-special device\n", 418 progname, special); 419 cp = strchr(argv[0], '\0') - 1; 420 if (cp == 0 || (*cp < 'a' || *cp > ('a' + maxpartitions - 1)) 421 && !isdigit(*cp)) 422 fatal("%s: can't figure out file system partition", 423 argv[0]); 424 #ifdef COMPAT 425 if (!mfs && disktype == NULL) 426 disktype = argv[1]; 427 #endif 428 lp = getdisklabel(special, fsi); 429 if (isdigit(*cp)) 430 pp = &lp->d_partitions[0]; 431 else 432 pp = &lp->d_partitions[*cp - 'a']; 433 if (pp->p_size == 0) 434 fatal("%s: `%c' partition is unavailable", 435 argv[0], *cp); 436 if (pp->p_fstype == FS_BOOT) 437 fatal("%s: `%c' partition overlaps boot program", 438 argv[0], *cp); 439 } 440 havelabel: 441 if (fssize == 0) 442 fssize = pp->p_size; 443 if (fssize > pp->p_size && !mfs) 444 fatal("%s: maximum file system size on the `%c' partition is %d", 445 argv[0], *cp, pp->p_size); 446 if (rpm == 0) { 447 rpm = lp->d_rpm; 448 if (rpm <= 0) 449 rpm = 3600; 450 } 451 if (ntracks == 0) { 452 ntracks = lp->d_ntracks; 453 if (ntracks <= 0) 454 fatal("%s: no default #tracks", argv[0]); 455 } 456 if (nsectors == 0) { 457 nsectors = lp->d_nsectors; 458 if (nsectors <= 0) 459 fatal("%s: no default #sectors/track", argv[0]); 460 } 461 if (sectorsize == 0) { 462 sectorsize = lp->d_secsize; 463 if (sectorsize <= 0) 464 fatal("%s: no default sector size", argv[0]); 465 } 466 if (trackskew == -1) { 467 trackskew = lp->d_trackskew; 468 if (trackskew < 0) 469 trackskew = 0; 470 } 471 if (interleave == 0) { 472 interleave = lp->d_interleave; 473 if (interleave <= 0) 474 interleave = 1; 475 } 476 if (fsize == 0) { 477 fsize = pp->p_fsize; 478 if (fsize <= 0) 479 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 480 } 481 if (bsize == 0) { 482 bsize = pp->p_frag * pp->p_fsize; 483 if (bsize <= 0) 484 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 485 } 486 /* 487 * Maxcontig sets the default for the maximum number of blocks 488 * that may be allocated sequentially. With filesystem clustering 489 * it is possible to allocate contiguous blocks up to the maximum 490 * transfer size permitted by the controller or buffering. 491 */ 492 if (maxcontig == 0) 493 maxcontig = MAX(1, MIN(MAXPHYS, MAXBSIZE) / bsize - 1); 494 if (density == 0) 495 density = NFPI * fsize; 496 if (minfree < MINFREE && opt != FS_OPTSPACE) { 497 fprintf(stderr, "Warning: changing optimization to space "); 498 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 499 opt = FS_OPTSPACE; 500 } 501 if (trackspares == -1) { 502 trackspares = lp->d_sparespertrack; 503 if (trackspares < 0) 504 trackspares = 0; 505 } 506 nphyssectors = nsectors + trackspares; 507 if (cylspares == -1) { 508 cylspares = lp->d_sparespercyl; 509 if (cylspares < 0) 510 cylspares = 0; 511 } 512 secpercyl = nsectors * ntracks - cylspares; 513 if (secpercyl != lp->d_secpercyl) 514 fprintf(stderr, "%s (%d) %s (%lu)\n", 515 "Warning: calculated sectors per cylinder", secpercyl, 516 "disagrees with disk label", lp->d_secpercyl); 517 if (maxbpg == 0) 518 maxbpg = MAXBLKPG(bsize); 519 headswitch = lp->d_headswitch; 520 trackseek = lp->d_trkseek; 521 #ifdef notdef /* label may be 0 if faked up by kernel */ 522 bbsize = lp->d_bbsize; 523 sbsize = lp->d_sbsize; 524 #endif 525 oldpartition = *pp; 526 mkfs(pp, special, fsi, fso); 527 if (!Nflag && memcmp(pp, &oldpartition, sizeof(oldpartition))) 528 rewritelabel(special, fso, lp); 529 if (!Nflag) 530 close(fso); 531 close(fsi); 532 #ifdef MFS 533 if (mfs) { 534 struct mfs_args args; 535 536 sprintf(buf, "mfs:%d", getpid()); 537 args.fspec = buf; 538 args.export.ex_root = -2; 539 if (mntflags & MNT_RDONLY) 540 args.export.ex_flags = MNT_EXRDONLY; 541 else 542 args.export.ex_flags = 0; 543 args.base = membase; 544 args.size = fssize * sectorsize; 545 if (mount(MOUNT_MFS, argv[1], mntflags, &args) < 0) 546 fatal("%s: %s", argv[1], strerror(errno)); 547 } 548 #endif 549 exit(0); 550 } 551 552 #ifdef COMPAT 553 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 554 #else 555 char lmsg[] = "%s: can't read disk label"; 556 #endif 557 558 struct disklabel * 559 getdisklabel(s, fd) 560 char *s; 561 volatile int fd; 562 { 563 static struct disklabel lab; 564 565 if (ioctl(fd, DIOCGDINFO, &lab) < 0) { 566 #ifdef COMPAT 567 if (disktype) { 568 struct disklabel *lp, *getdiskbyname(); 569 570 unlabeled++; 571 lp = getdiskbyname(disktype); 572 if (lp == NULL) 573 fatal("%s: unknown disk type", disktype); 574 return (lp); 575 } 576 #endif 577 warn("ioctl (GDINFO)"); 578 fatal(lmsg, s); 579 } 580 return (&lab); 581 } 582 583 rewritelabel(s, fd, lp) 584 char *s; 585 volatile int fd; 586 register struct disklabel *lp; 587 { 588 #ifdef COMPAT 589 if (unlabeled) 590 return; 591 #endif 592 lp->d_checksum = 0; 593 lp->d_checksum = dkcksum(lp); 594 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 595 warn("ioctl (WDINFO)"); 596 fatal("%s: can't rewrite disk label", s); 597 } 598 #if vax 599 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 600 register i; 601 int cfd; 602 daddr_t alt; 603 char specname[64]; 604 char blk[1024]; 605 char *cp; 606 607 /* 608 * Make name for 'c' partition. 609 */ 610 strcpy(specname, s); 611 cp = specname + strlen(specname) - 1; 612 if (!isdigit(*cp)) 613 *cp = 'c'; 614 cfd = open(specname, O_WRONLY); 615 if (cfd < 0) 616 fatal("%s: %s", specname, strerror(errno)); 617 memset(blk, 0, sizeof(blk)); 618 *(struct disklabel *)(blk + LABELOFFSET) = *lp; 619 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 620 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 621 off_t offset; 622 623 offset = alt + i; 624 offset *= lp->d_secsize; 625 if (lseek(cfd, offset, SEEK_SET) == -1) 626 fatal("lseek to badsector area: %s", 627 strerror(errno)); 628 if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) 629 warn("alternate label %d write", i/2); 630 } 631 close(cfd); 632 } 633 #endif 634 } 635 636 /*VARARGS*/ 637 void 638 #if __STDC__ 639 fatal(const char *fmt, ...) 640 #else 641 fatal(fmt, va_alist) 642 char *fmt; 643 va_dcl 644 #endif 645 { 646 va_list ap; 647 648 #if __STDC__ 649 va_start(ap, fmt); 650 #else 651 va_start(ap); 652 #endif 653 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 654 openlog(progname, LOG_CONS, LOG_DAEMON); 655 vsyslog(LOG_ERR, fmt, ap); 656 closelog(); 657 } else { 658 vwarnx(fmt, ap); 659 } 660 va_end(ap); 661 exit(1); 662 /*NOTREACHED*/ 663 } 664 665 usage() 666 { 667 if (mfs) { 668 fprintf(stderr, 669 "usage: %s [ -fsoptions ] special-device mount-point\n", 670 progname); 671 } else 672 fprintf(stderr, 673 "usage: %s [ -fsoptions ] special-device%s\n", 674 progname, 675 #ifdef COMPAT 676 " [device-type]"); 677 #else 678 ""); 679 #endif 680 fprintf(stderr, "where fsoptions are:\n"); 681 fprintf(stderr, 682 "\t-N do not create file system, just print out parameters\n"); 683 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 684 fprintf(stderr, "\t-S sector size\n"); 685 #ifdef COMPAT 686 fprintf(stderr, "\t-T disktype\n"); 687 #endif 688 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 689 fprintf(stderr, "\t-b block size\n"); 690 fprintf(stderr, "\t-c cylinders/group\n"); 691 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 692 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 693 fprintf(stderr, "\t-f frag size\n"); 694 fprintf(stderr, "\t-i number of bytes per inode\n"); 695 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 696 fprintf(stderr, "\t-l hardware sector interleave\n"); 697 fprintf(stderr, "\t-m minimum free space %%\n"); 698 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 699 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 700 fprintf(stderr, "\t-p spare sectors per track\n"); 701 fprintf(stderr, "\t-s file system size (sectors)\n"); 702 fprintf(stderr, "\t-r revolutions/minute\n"); 703 fprintf(stderr, "\t-t tracks/cylinder\n"); 704 fprintf(stderr, "\t-u sectors/track\n"); 705 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 706 exit(1); 707 } 708
Indexes created Fri Sep 26 20:09:58 GMT 2025